APPENDIX. No. V. 
cxxv 
from which the negroes collect it, which proves to be a species of Pterocarpus 
not yet described by any botanical writer. 
3. Triho. As no part of the plant was sent except the root, nothing can 
be said concerning its species. It appeared to be a moderately good dye, but 
had no marked superiority over those already known, sufficient to induce Sir 
Joseph Banks to cause experiments to be made with it. Indeed, the quantity 
was not sufficient for any experiments, except on a very confined scale. 
